Arnold w



'(No Model.)

- A. W., SGHLIOHTE.

LONGITUDIINALLY EXPANDING EoLLE No. 374,709. Patentd lg:i

V \wmm INVENTOR:

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ATTORNEYS.

' WITNESSES:

N. PETERS, PholirLilhognpher. wmm um 0:0.

UNITED STATES PATENT OFFICE- ARNOLD W. SOHLICHTE, NEW YORK, N.'Y.

LONGITUDlNALLY-EXPANDING ROLLER.

SPECIFICATION forming part of Letters Patent No. 374,709. dated December 13, 1887.

Application filed March 26,1887.

T 0 all whom it may concern.-

Be it known that I, ARNOLD W. SoHLIoHTE, of the city, county, and State of New York, have inventeda new and Improved Longitudinally-Expanding Roller, of which the following is a full, clear, and exact description.

The object of this invention isto provide a roller with facing or sheathing plates that are arranged to be moved backward and forward upon the face of the roller, the arrangement being such ,that as the roller moves forward the plates are gradually drawn outward,to be,however, rapidly forced inward as they arrive at a certain predetermined point in the rotation of the roller.

To the end named the invention consists of a roller provided with longitudinally-adjustable plates that are held to the peripheral surface of the roller, and a means,to be hereinafter described, whereby said plates are drawn outward gradually and then forced inward rapidly as the roller advances.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar figures of reference indicate corresponding parts in all the views.

Figure l is a side view of a roller constructed in accordance with the terms of my invention, the sheet in connection with which the roller is employed being shown in section above the roller and being broken away below the roller. Fig. 2 is an enlarged central sectional view of the left-hand support ofthe roller. Fig.3 is a crosssectional view taken on the broken line x 00 of Fig. 2. Fig. 4 is a cross-sectional view taken upon line 3 y of Fig.1, and Fig. 5 is a side view of a modified form of cam.

In the drawings above referred to, 10 represents a roller that is supported at either end by a pintle or bearing, 11, the points of said bearings entering sockets formed in castingsl12, that are secured to the ends of the roller-body, the pintlcs being adjusted by means ofjamnuts 13,that are arranged upon either side of the frame, as illustrated.

Each end of the roller 10 is slightly cutaway, and in these cutaway portions there are formed grooves 2,in which there ride L-shaped projections 3,which extend inward from plates 20, that are applied to the peripheral surfaces of the end sections of the roller. As many of these plates 20 as may be necessary to inelose Serial No. 232,521. (No model.)

the roller are applied at each end. In the drawingsl have illustrated the roller as being provided with three plates. 5 5

The plates 20 extend beyond the ends of the roller 10, and to the inner faces of these outwardly-extending portions there are secured studs or projectionstwhich enter cam-grooves 5,that are formed in castings which are secured to the frame of the machine in connection with which the roller is to be employed; or the castings in which the cam-grooves are formed might be made integral with the frame. The camgrooves extend gradually outward from the point a until they reach the point b,when

they are carried in abruptly to the point a,so that as the roller is moved forward in the direction of the arrow shown in connection therewith in Fig. 1 the plates 20 will be carried outward in the direction of the arrows shown in connection therewith as the roller 10 advances, but will be carried inward to their original position when their studs 4 enter the abrupt portion of the cam-groove between the points I) and a.

Rollers constructed and arranged as above will be found to be exceedingly useful in the handling of moistened webs of paper-such, for instance, as the webs employed in straw- 8c board lining-machines-which said webs receive a coat of paste, for as the webs pass over the-roller constructed as above described each plate 20 will move gradually toward the ends of the roller during the time that the paper is in contact therewith, the plates being returned to their inner position after they reach a point where they are no longer in contact with the web, the acute portion of the cam-groove being located so as to bring about this return 0 movement at the time when the platesare not borne upon by the paper.

As the webs are passed over rollers operating as above described, the plates will act to expand all, longitudinal wrinkles, sothat the web may be delivered for association with the sheets in a perfectly smooth condition.

Now,although I have described a particular means for holding the plates 20 to the roller 10, it will of course be understood that any 1 0 other means whereby the plates could be held to the rollers could be employed without departing from the spirit of my invention.

In Fig. 5 I illustrate a cam-ridge instead of studs carried by the plates, and a cam arranged x 5 to operate upon the studs, substantially as described.

3. The combination, with a roller formed with contracted ends, of plates 20,Iheld to the peripheral faces of said contracted ends, studs 20 4, carried by the plates, and a cam-groove in which the studs ride, said groove being formed with a gradual and an acute section, substantially as described.

ARNOLD W. SGHLICHTE.

Witnesses:

EDWARD KENT, J r.,

O. SEDGWIOK. 

